45+45+135+135+3x+x=720

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Solution for 45+45+135+135+3x+x=720 equation: 


Simplifying
45 + 45 + 135 + 135 + 3x + x = 720

Combine like terms: 45 + 45 = 90
90 + 135 + 135 + 3x + x = 720

Combine like terms: 90 + 135 = 225
225 + 135 + 3x + x = 720

Combine like terms: 225 + 135 = 360
360 + 3x + x = 720

Combine like terms: 3x + x = 4x
360 + 4x = 720

Solving
360 + 4x = 720

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-360' to each side of the equation.
360 + -360 + 4x = 720 + -360

Combine like terms: 360 + -360 = 0
0 + 4x = 720 + -360
4x = 720 + -360

Combine like terms: 720 + -360 = 360
4x = 360

Divide each side by '4'.
x = 90

Simplifying
x = 90

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